1970 Doubled Die Obverse WDDO-010

Description

Cross-referenced as CONECA 4-O-V, WDDO-010 on the 1970 Lincoln Memorial cent carries a Class V pivoted hub doubling designation — the same mechanical category as WDDO-004 and WDDO-005, where the hub tilted around a contact point during the secondary impression rather than rotating around a central axis. The CONECA 4-O-V listing indicates this was the fourth DDO cataloged in their system for this date, placing it among the earlier discoveries. Pivoted hub doubling produces a characteristic displacement gradient: elements near the pivot show minimal doubling while those farther away display progressively greater separation. This gradient is diagnostically useful because it maps the pivoting event — by measuring doubling magnitude at multiple locations, attributors can triangulate the approximate pivot point and verify consistency with Class V mechanics. The 1970 Philadelphia cent's extensive DDO roster includes multiple Class V varieties, suggesting hub pivoting was a recurring mode of misalignment in the die sinking process rather than an isolated anomaly.

Attribution History

• Discovered by John A. Wexler Cross References: CONECA: 4-O-V
• CONECA: 4-O-V; Wexler Variety ID: 1970 1¢ WDDO-010
• Expert attribution by Wexler Team

External References